waste of time

基本解釋

Attempting to change someone is a waste of time and energy.
嘗試改變別人是一件浪費(fèi)時間和精力的事情。
At the same time, other students in the same class already have the skill down cold, so further practice for them is a waste of time.
同時，同一個班級的其他學(xué)生可能已經(jīng)熟練掌握了這項(xiàng)技能，所以繼續(xù)練習(xí)對他們來說只是浪費(fèi)時間。
blog.sina.com.cn
An architectural description, like any deliverable, needs to be created for a purpose and an audience, otherwise creating it is a waste of time.
一個架構(gòu)描述，如同任何可交付的產(chǎn)品，是需要為了某個目標(biāo)和受眾而創(chuàng)建的，否則只是浪費(fèi)時間。

In addition,news agencies provide updates and companies share product information through Twitter Some critics say Twitter is a waste of time that takes people's attention away from their work.
It was a complete waste of time, unless the goal in life was simply to pester the user for some input.
剛才的時間就完全浪費(fèi)了，除非那個唯一的目的,是簡單地糾纏用戶索要一些輸入。
哈佛公開課 - 計(jì)算機(jī)科學(xué)課程節(jié)選
The last one that we saw was a complete waste of time.
我們看的上一部這種電影完全是浪費(fèi)時間。
There is no 實(shí)戰(zhàn) - SpeakingMax英語口語達(dá)人

This process might take hours or even days, and it is a complete waste of time!
FORBES: Stop Worrying About The Questions -Media Training